Fix crashing error on orphan quotes

Juris-M · Mar 20, 2017 · eaf0d85 · eaf0d85
1 parent 8ccf5ca
commit eaf0d85
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/src/formatters.js b/src/formatters.js
@@ -160,8 +160,12 @@ CSL.Output.Formatters = new function () {
         if (config.quoteState) {
             for (var i=0,ilen=config.quoteState.length;i<ilen;i++) {
                 var quotePos = config.quoteState[i].pos;
-                var origChar = config.doppel.origStrings[quotePos+1].slice(0, 1);
-                config.doppel.strings[quotePos+1] = origChar + config.doppel.strings[quotePos+1].slice(1);
+                // Test for quotePos avoids a crashing error:
+                //   https://github.com/citation-style-language/test-suite/blob/master/processor-tests/humans/flipflop_OrphanQuote.txt
+                if (typeof quotePos !== 'undefined') {
+                    var origChar = config.doppel.origStrings[quotePos+1].slice(0, 1);
+                    config.doppel.strings[quotePos+1] = origChar + config.doppel.strings[quotePos+1].slice(1);
+                }
             }
         }
         // Capitalize the last word if necessary (bypasses stop-word list)